Which low-cost System-on-Chip (SoC) family is extremely popular in modern IoT projects, with the ESP32 providing integrated Wi-Fi and Bluetooth/BLE connectivity?
Espressif's ESP32 and ESP8266 families are widely used low-cost IoT SoCs. ESP32 provides integrated Wi-Fi and Bluetooth/BLE; ESP8266 provides integrated Wi-Fi.
What is the primary function of an 'IoT Gateway'?
An IoT Gateway serves as a bridge, performing protocol translation, local data processing, filtering, and securing communication between local sensor networks and remote cloud platforms.
Which of the following is an essential motivation driving the adoption of the Internet of Things in industry?
The business and engineering motivation for IoT adoption encompasses real-time tracking, energy optimization, predictive maintenance, and operational automation (A, B, and C are all valid motivations).
What type of component is a Relay Module in an IoT smart home circuit?
A relay module is an electrically operated switch (actuator) that allows a low-power microcontroller signal (e.g., 3.3V or 5V) to turn high-voltage AC appliances (e.g., 220V light/fan) on or off.
Which of the following defines 'Edge Computing' in comparison to Cloud Computing?
Edge computing processes time-sensitive telemetry at the local network perimeter (edge nodes/gateways), significantly reducing network latency, cloud dependency, and data transport costs.